Room heater



1 1943- a. L. MOELLER 2,334,501

ROOM HEATER Filed Feb. 17, 1942 80! Z Z w 9 Patented Nov. 16, 1943 UNITED STATES PATENT OFFICE ROOM HEATER George L. Mocller; St. Louis, Mo., assignor to Knapp-Monarch Company, St. Louis,

corporation of Missouri Application February 17, 1942, Serial No. 431,202

7 Claims.

' Stilla further object is to utilize the reflector 1 d of the heater bowl as a means to reflect radiant heat therefrom and as a means to deflect radially blown air from a blower type fan, thereby causing it to travel in a general forward direction from the reflector.

Still another object is to provide a support for the heater which passes around the outside of the fan blades so as not to interfere with their operation.

With these and other objects in view, my invention consists in the construction, arrangement and combination of the various parts of my device whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims and illustrated in the accompanying drawing. Although the invention issusceptible of a variety of embodiments, it is unnecessary to fully describe and illustrate more than one in order to give a full understanding of the invention both from. its structural and functional standpoints. Accordingly, I have illustrated a preferred and desirable embodiment of the invention in the accompanying drawing, in which:

Figure l is a side elevation of a room heater embodying my invention showing the reflector and heater in section;

Figure 2 is a sectional view as on the line 2-4 of Figure 1 showing only the motor, the heater, I

the fan and a section of the reflector;

Figure 3 is a front elevation of the heater; and

Figure 4. is a rear elevation thereof on an enlarged scale as taken on the line 4-4 of Figure 1 to show a portion of the support for the heater.

On the accompanying drawing I have used the reference numeral H] to indicate a base. Tiltably mounted on the base is a yoke I! having an upstanding sleeve l3. A clamp screw I4 is provided for clamping the yoke H with relation to the base l0.

An electric motor I6 is provided with a downjlatable with the motor.

bracket B supports a heater H. The bracket B has a central portion, shown in Figure 4. and four arms 28. The armsZB are bent rearwardly wardly extending stud l'l rotatable in the sleeve- I3, a screw 18 beingprovided for cooperation with a groove 19 in the stud-l1 to-prevent removal of the motor. from the base.

The motor 18 has .a shaft 20 rotated in the usual manner by 'energization of the motor. The

motor I6 is oscillatable relative to the base 10,-.

as isxusual-in connection withoscillatinggfa'ns. as 7 by a shaft 2! geared down with relation to the motor shaft 20 and carrying a crank arm 22;: The

crank arm. 22 is connected bya link 23 with alateral arm on the sleeve i3.

A bowl-like reflector 25v is supported on the motorlll asxby. bolts 26, and is accordingly oscil- Within the reflector a as at 29, and their ends are connected by s rews to the reflector 25. v k I The heater H comprises a cone-shaped support 3| of insulation having a'groove therearoundlin which a coiled resistance element 32 is wound. the ends of the element 32, indicated at 33' and 34, 7

connecting with clips 35 secured to terminal bolts 36. The terminal bolts 36 pass through an embossed portion 3! of the bracket'B and are suitably insulated therefrom by the usual mica washers. Terminal clips 38 are mounted on the rear ends of the screws 36 and are connected with wires 39. The wires 39 pass through porcelain insulating sleeves 40, 4| and 42 into the housing of the motor .I 6, where they are connected with supply wires 43 also extending into the housing. The supply wires 43 have a plug for connectionto a service outlet on their outer end, in the usual manner, and are connected to the motor [6 as well as to the heater supply wires 39.

,Thebracket B, it will be noted, supports the heater H, spaced forwardly from the reflector 25 in the proper position for radiantheat to be re flected from the heater by the reflector toward thefront of the reflector. At thesame time, the construction of the bracket B issuch that it provides a space in which a fan 44 may rotate. The fan 44 is of the blower type, and, accordingly, draws air in at the center and discharges it radially. It therefore circulates air in the path indicated by the arrows a, b, c and d. The air is drawn in, as indicated by the arrow a, across the heating element 32 to pick up heat therefrom, and then passes into the center of the fan blades 44, as indicated by arrow b. Rotation or the Ian blades causes the airto be blown'radially outward. as at c, and the air is then deflected by the reflector 25, as indicated by the arrow d. Thus, the reflector acts also as a deflector for the air, in addition to reflecting radiant heat from the heater H.

To protect objects in front of the heater from getting too close to it, and also to protect the floor in case the heater is tipped over forwardly, a wire guard 45 is provided in the form of radial wires, connected at their center by a plate 45 and having their terminal ends secured to an annular wire 41. The annular wire 41 is received in a groove 48 at the periphery of the reflector 25.

Some changes may be made in the construction and arrangement of the parts of my device without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope without sacriflcing any of the advantages thereof. ,I claim as myinvention:

said motor relative to said base, a'bowl-like reflector supported on said motor for oscillation therewith, an electric heater supported in position in said reflector for heat from said heater to be reflected by the reflector, said motor having a shaft projecting into said reflector, and a fan on said shaft to draw air into said reflector and over said heater and project the air heated thereby toward the reflector whereby it is deflec'ted by, and then travels forwardly from said reflector.

=2. In a room heater, 9. base, a reflector and a motor mounted thereon, a heater supported in position in said reflector for heat from said heater to be reflected by the reflector, said motor haviny a shaft projecting into said reflector, a fan on said shaft and rotating relative to said reflector for drawing air over said heater and pro- -jecting the air heated thereby radially from the fan blades toward said reflector, said reflector motor and positioned in said deflector for air taken in adjacent the center of the deflector to be thrown peripherally outward and deflected forwardly by the deflector.

4. In a room heater, a base, a motor mounted thereon, a bowl-like reflector, a cone-shaped electric heater supported therein for reflection of heat from said heater by the reflector, said motor having a shaft projecting into said reflector, and a centrifugal fan on said shaft between said heater and said reflector.

5. In a room heater, a base, a motor oscillatably mounted thereon, said motor having a shaft, means operable from said shaft to impart movement to said motor and to oscillate it relative to said base, a bowl-like reflector supported on said motor for oscillation therewith, a cone-shaped electric heater supported in position in said reflector for heat from the heater to be reflected by the reflector, said motor shaft projecting into said reflector, a centrifugal blower type fan on said shaft immediately behind said cone-shaped heater, supporting brackets for said heater extending around said fan and connected with said reflector at the back thereof, said fan drawing air over said cone-shaped heater and expelling it radially into said reflector, said reflector acting as adeflector for the air to deflect it forwardly from said reflectori 6. In a room heater, a base, a motor oscillatably mounted thereon, said 'motor having a shaft,

'means operable from said shaft to impart movement to said motor and to oscillate it relative to said base, a reflector supported on said motor for oscillation therewith, a heater, said motor shaft projecting into said reflector, a centrifugal blower type fan on said'shaft immediately behind said heater, supporting brackets for said heater extending around said fan and connected with said reflector behind the fan, said fan drawing air over said heater and expelling it radially into said reflector.

7. In a room heater, a motor having a shaft, a bowllike reflector supported thereon, a heater supported in front of said reflector, a centrifugal blower type fan on said shaft between said heater and said reflector, open supporting brackets for said heater extending around said fan and connected with said reflector at the back of the fan, said fan rotating independent of said reflector and drawing air over said heater and expelling it radially and directly through said open supporting brackets into said reflector whereby said reflector deflects the air forwardly.

GEORGE L. MOELLER. 

